Margaret Sinclair
# Margaret Sinclair

Margaret Sinclair may refer to:

* Margaret Sinclair (nun) (1900–1925), Scottish Roman Catholic nun
* The maiden name of Margaret Trudeau
* Margaret Sinclair, Countess of Caithness, see William Sinclair, 2nd Earl of Caithness
* Margaret Sinclair Ogden on List of Guggenheim Fellowships awarded in 1960
